[[1520668800, 3]
,[1520672400, 5]
,[1520676000, 5]
,[1520679600, 1]
,[1520683200, 5]
,[1520694000, 2]
,[1520697600, 2]
,[1520701200, 4]
,[1520704800, 4]
,[1520708400, 1]
,[1520712000, 1]
,[1520715600, 2]
,[1520719200, 1]
,[1520722800, 1]